Array store/allocation elimination

Allow array store/allocation elimination if it's only accessed
by constant index, so that there is no index-aliasing.

Bug: 35634932
Test: m -j20 test-art-host-run-test
Change-Id: Ief6e27f5bdbb30988ff4f318a34b4251c93865fa

1 files changed, 4 insertions, 0 deletions

diff --git a/test/532-checker-nonnull-arrayset/src/Main.java b/test/532-checker-nonnull-arrayset/src/Main.java
index 2c701bbb94..61c9e88e9e 100644
--- a/test/532-checker-nonnull-arrayset/src/Main.java
+++ b/test/532-checker-nonnull-arrayset/src/Main.java
@@ -30,10 +30,14 @@ public class Main {
   /// CHECK:          ReturnVoid
   public static void test() {
     Object[] array = new Object[2];
+    // Storing to static to avoid some lse optimization.
+    sArray = array;
     Object nonNull = array[0];
     nonNull.getClass(); // Ensure nonNull has an implicit null check.
     array[1] = nonNull;
   }
 
   public static void main(String[] args) {}
+
+  static Object[] sArray;
 }